Hands-On High Performance with Spring 5

Connection pooling

Connection pooling is a strategy to help an application's execution where N connections with the database are opened and overseen in a pool. The application just requests a connection, utilizes it, and afterward drops it back to the pool. At the point when the application requests a connection, the prepared connections are kept accessible to be utilized as part of the pool. The pool deals with the connection life cycle to such an extent that the developer really doesn't have to sit tight for the connection and shift through the stale ones.

Hibernate uses its magic to identify which connection pool provider to use—based on the properties you configure.

The following is the properties configuration for the c3p0 connection ...